Tobacco-delivery apparatus for cigarette-machines.



B. SGHURMANN. TOBACCO DELIVERY APPARATUS FOR G'LGARETTE MACHINES.

v APPLICATION FILED APB.3, 1912. 1,073,937.

Patented Sept. 23, 1913.

EDUARD scnr'miaann, or KoErzsoHENBRonA, NEAR DRESDEN, GERMANY.

TOBACCO-DELIVERY APPARATUS FOR CIGARETTE-MACHINES.

Specification of Letters Patent.

Patented Sept. 23, 1913.

Application filed April 3, 1912. Serial No. 688,149.

To all whom it may concern Be itknown that I, EDUARD Scnt'mmmu, managing director, and resident of Albertstrasse 5, Koetzschenbroda, near Dresden, Saxony, German Empire, have invented a new and useful Improvement in Tobacco Delivery Apparatus for Cigarette-Machines, of which the following is a specification.

The present invention relates to an improvement in tobacco delivery-apparatus for cigarette-1nachines and the object is to separate during the delivery of the tobacco its long fibers from the fine short fibers and to separately supply both kinds of fibers from the delivery-apparatus. By this separation of the tobacco the time short fiber tobacco can be excluded from the manufacture of cigarettes or it may be delivered in such a manner that it is situated within the interior part of the cigarette and surrounded by layers of long fiber tobacco, whereby the injuring or raveling out of the cigarette is fully prevented.

in the drawing, Figure 1 is a diagrammatic sectional elevation of a machine embodying my present invention. Fig. 2 is a plan of a device for reducing the width of a layer of tobacco. Fig. 3 is a plan of the modified device for reducing the width of a layer of tobacco. Fig. 4 is a frontelevation of the device shown in Fig. 3.

a is the receptacle for containing the tobacco and b a trough-shaped projecting part which may be opened by hand and is drawn in by the pull of weights as the tobacco contained in the receptacle a is taken therefrom. The sand. and other foreign matter in the tobacco fall onto the bottom of the trough-like projection 7) partly during the filling of the receptacle, and partly during the movement of the said troughlike projection, and can be discharged by the passage 0.

(Z is a delivery-roller situated near the bottom of the receptacle a and intermittently rotated. The periphery of this delivery-rollerd isprovided with cards arranged to point in a direction opposite to that of its rotary movement. By this inclined position of the cards a tearing or severing of the tobacco fibers is prevented. On thecontrary, they are delivered in an unbroken condition to a working roller 0 arranged to rotate above and at one side of the vertical axis of the delivery-roller 1.

Besides this the cards allow the shortfibcr tobacco after being freed to fill the spaces between the cards from which it is scraped by a brush-roller f to an endless belt 9 ranged in front of the delivery-roller (l.

i is an equalizing roller constantly rotating together with and above the working roller 0 its cards slanting in a direction opposite to that of its rotary movement. The roller 6 is engaged by the hairs of the brush-roller and la is another endless belt situated in front of the working-roller e.

The weight of the tobacco only rests on the delivery-roller d arranged near the bottom of the receptacle, and not on the working-roller c. This latter forms the front part of said receptacle and takes its supply of tobacco from the quantity of tobacco ted by the roller (Z. The superfluous tobacco is scraped off by the equalizing roller 2', which may be rotated constantly or, if preferred, intermittently.

The relative speeds of rotation of the rollers d, e and i, are as follows: The roller (1 makes one, the roller 6 and the roller 73 1.4 revolutions in one minute. As the diameters of said three rollers do not materially differ one from another, the speeds at the peripheries are in approximately the same ratios.

During the time the supply of tobacco in a is at a higher level than the upper lianit of the roller 0. the spaces between the cards of the latter are filled and the tobacco scraped from the equalizing roller 2' by a brush roller 1 will fall baclcto the tobacco supply. In proportion as this supply is reduced, the tobacco scraped from the working-roller e by means of the roller 2' tends to fill up the spaces between the cards on the roller 0. The fibrous tobacco taken from this roller by means of the brush-roller la is fed to the traveling endless belt 7a and from itto the cigarette forming channel on. in the same manner as the fine or short fiber tobacco led by the endless belt (7. lf, therefore, long fiber tobacco only is fed 01" delivered to the entire width of the endless trav cling belt 71' and fine or short fiber tobacco only on a central part of the traveling endless beltv 1 of a width equal to that of the endless band is. the result willbe that the lower layer on the support-strip running within the channel m will consist of long fiber tobacco, the middle layer of a mixture of long and short fiber tobacco and the up per layer again of long fiber tobacco. To narrow the width of the short fiber tobacco layer situated on the endless belt g, blades or boards it may be arranged on said band as shown in Fig. 2 or the edges of said band may be bent in an upward direction by lateral rollers oobliquely arrangedas shown in. Figs. 3 and t, or the width of the spread ing channel situated in front of the brushroller 7'' may be reduced by lateral plates.

By arranging the cards on the deliveryroller (5 to point in a backward direction, said roller may run with a speed sufficiently high even for cigarettes of the greatest thickness without injuring or the tobacco and it will only be necessary 1 n late the speed of the rotary movement or the working-roller according to the thickness of the cigarettes to be manufactured In combination with the intermittent rotary movement of the delivery-roller the rangement of its cards to point in a bachward direction is intended to obviate the formation of a tobacco-roll in the receptacle a or at least the twisting movement of the tobacco therein The long and short fiber tobacco sepa-- tobacco only to fall down into the central part of the long fiber tobacco layer.

The lower endless belt 9 may be shortened or reduced in length in such a manner that the short fiber tobacco delivered by it does not reach the forming channel m, but is freely removed before so that it will be possible to make use if desired of the-long fiber tobacco only.

I claim as my invention:

1. In a tobacco delivery apparatus for cigarette-machines, in combination with a tobacco receiving receptacle, a central working-roller constantly rotating andprovided with cards slanting in the direction of its rotary movement, a delivery-roller arranged to intermittently rotate below the constantly rotating working-roller and provided with cards slanting in an opposite direction to its rotary movement and means for taking off arass? and deliverin the fibrous tobacco, substantially as and lor the purpose specified.

2. In a tobacco delivery-apparatus for cigarette-machines in combination with a tobacco receiving receptacle, a central working-roller constantly rotating and provided with cards slanting in the direction of its rotary movement, a bruslrroller talrin the fibrous tobacco from said roller, a delivery roller arranged to intermittently rotate below the constantly rotating working roller and provided with cards slanting in an oposite direction to its rotary movement, a rush-roller taking the fibrous tobacco from. said delivery roller, an e ualizing roller rotating together with an above the warhing-roller and scraping off the superfluous tobacco from the central working-roller and a brush-roller scraping oil the tobacco from said equalizing-roller back to the tobacco supply, substantially as and for the purpose specified.

In a tobacco delivery-apparatus for cigarette-machines, in combination with a tobacco receiving receptacle, a central worlo ing-roller, a brush-roller taking the fibrous tobacco from it, an endless traveling band receiving the long fiber tobacco from said working-roller, a delivery-roller, a brush roller taking the fibrous tobacco from it and an endless traveling band receivingthe short fiber tobacco from said delivery-roller, substantially as and to: the purpose specified.

4a In a tobacco delivery-apparatus for cigarette-machines, in combination with a tobacco receiving receptacle, a central working-roller, constantly rotating and provided with cards slanting in the direction of its i rotary movement, a brush-roller taking the long fiber tobaccofrom said working-roller, an endless traveling band receiving said to bacco from the working-roller, a deliveryroller arranged to intermittently rotate be low the constantly rotating working roller and provided with cards slanting in an opposite direction to its rotary movement, a brush-roller taking the short fiber tobacco from it, and an endless traveling band receiving said tobacco from the deliveryroller, substantially as and for the purpose specified.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this 20th day of March 1912.

EDUARD SCHURMANN. Witnesses:

ULYSSES J. BYWATER, CLARE SIMON. 

